Rotary stage for theaters and the like



April 29 1924. 1,491,951

M. HASAIT ROTARY STAGE FOR THEATERS AND THE LIKE .F iled D Q. 24. 1921 atented Apr. 29 1924.

M an STATES MAX HASAIT, 0F DRESDEN, GERMANY, ASSIGNOR T0 AKTIEBOLAGET A35, OF STOCK- HOLM, SWEDEN,

A GORPORA'IION.

Application filed December 24, 1921.

I '0 all whom it may concern:

Be it known that I, MAX HAsAI'r, citizen of Germany, residing atDresden, 'Furstenstrasse 1, Germany, have invented certain new and useful Improvements in Rotary Stages for Theaters and the like, of which the following is a specification.

In the common construction of rotary stages separate parts of the rotary stage cannot be raised and lowered in each position of the same.

This invention relates to a rotary stage in which said inconvenience is prevented. According to the invention the stage consists of a drum-shaped, hollow body preferably constructed of frame-works and adapted by means of any known driving device and by the aid of rollers mounted near the lower end of the hollow body to be rotated on a circular rail placed in the lower machinery, the said body being closed at the top by a circular platform divided into several stripformed sections. Each of said sections is supported by a frame-work to which vertical rails are attached, and adapted to be raised and lowered in corresponding guides on the inner side of the hollow body, the sections of the platform thus being capable of being raised beyond the stage floor or lowered in the interior of the drum-shaped body independent of one another. By this construction it is possible to adjust the several sections in vertical direction in any position of the rotary stage. Besides, recesses may be provided in the slidable stripformed sections, the openings of said recesses being closed, when passed over, by means of known slide devices. Obviously recesses of known kind may be provided in the several sections of the'platform. Besides it is possible, if the mobility of each separate section is to be disregarded, to have the platform undivided and to raise and lower the same as a unity in the manner described above. Finally the above-mentioned usefulness of the platform may be desisted from and the platform be rigidly attached to the drum-shaped body.

The rotary stage according to this invention may also be mounted in stage carriages, and in such case the circular rail mentioned above is attached to the bottom of the carriage and surrounds a circular incision in said bottom.

Serial No. 524,836.

A constructional form of the invention is illustrated in the accompanying drawing in which Fig. 1 is a vertical section along the broken line wyz of Fig. 2, and Fig. 2 a 7 said carriage, c the circular rail and d the flanged rollers running on the same. In the embodiment shown the drum-shaped body 6 consists of vertical rails S of C-formed cross-section, four such rails being provided for each section of the platform. Said rails S are connected with each other by means of frame-work and serve at the same time as guides for vertical rails e sliding in the rails S and having T-formed cross-section, the rails 6 being attached to frame-works 7. Supported by each pair of the latter frameworks is a section g of the platform. Each rail 6 is connected with a common lifting device it, i, only one such lifting device being shown in the drawing. The lifting device consists of a rope, one end of which is fastened to a drum h on the rails .9, said drum being driven by any suitable motor, whereby the rope runs over pulleys z to the vertical rails e, to which the other end of the rope is fastened. Placed at the edge of a circular incision in the stage floor b is a great number of flaps is adapted to be opened automatically for the passage of the rails e on raising the sections 9 and to close automatically on lowering said rails.

The said automatic raising of the flaps 7c is efiected when raising the sliding rails e, to which end said rails are beveled off at the top end touching the flaps k. If the raised section of the stage be lowered beneath the level of the stage floor b, the flaps are automatically closed by their own weight. If the stage having one or more sections raised is to be rotated, all of the flaps are to be opened, which may be effected by any suitable means actuating the flaps simultaneously.

Fig. 1 shows an inner part m of a section raised beyond the level of said section. The sliding and lifting device for said part m is constructed in the same manner as for the strip-formed sections.

What I claim as new and desire to secure by Letters Patent of the United States is l. A rotary stage for theaters and the like comprising a substantially drum-shaped body having rollers attached thereto, an annular rail on which said rollers run, and a platform supported by said body and divided into sections capable of being raised and lowered by means of guides provided in thebody.

2. A rotary stage for theaters and the like comprising a drum-shaped body consisting of vertical girders having C-formed cross;

section and interconnected by frame-work,v

body and divided into sections capable of being raised and lowered, said sections be ing supported by the aid of frame-work by vertical T-formed rails guided in said girders.

In testimony whereof I affix my signature in presence of two witnesses. I

MAX HASAIT. f

Witnesses: 1

EMORY H. LORD, V

J OHNIW. BULKLEY. 

